1 . Sadiman，a 67-year-old man，single-handedly restored an entire forest to save his village from hunger. He is a（n）_______ in Dali village，Indonesia. The Gendol hill was seriously deforested because of widespread logging（伐木）activities and a series of forest fires that took place in the 1960s. The extreme deforestation made the Gendol River. _______，leading to serious water crisis.

He came up with the _______ to restore the hill when he was working there to make _______ meet. Sadiman started to _______ banyan（榕树）trees on about 500 hectares of the forest. He has been doing this for the last 21 years all by himself and his sacrifice is _______ surprising. His poor _______ conditions didn't stop him spending his hard-earned money _______ the seedlings for plantation to restore the forest. A banyan tree seedling _______ about $5. 00，which was much money for him. To meet this __________，Sadiman began to plant clove（丁香）tree seedling in his yards. Ten clove tree seedlings were worth a banyan tree seedling. Sadiman's devotion was beyond. __________，yet he was called a "crazy person" and some of his seedlings were __________ pulled out of the ground by irresponsible people. __________，this didn't stop him from planting the seedlings.

Non-stop since the early 1990s，Sadiman has __________ on planting trees and taking care of them to ensure they grow strong and healthy. __________ his continuous hard work，the forest has started to recover. More and more springs and streams have been __________ to provide a reliable water supply for the area. People are becoming __________of the importance of the forest in the bigger __________. The Gendol Hill，once wild，now returns to its former glory by one man and his action to __________ the whole region from drought（干旱）and __________. He truly is a one man army！

2 . When you take a walk in a town in a western country, you’ll often see people walking ________their dogs. It is still true that a dog is __________ animal in the world, but the reason why people ________ a dog has changed. Once upon a time, a man met a dog and wanted it to help him in the fight _______ other animals and he found the dog ________ him and did what he told him ________. Later people used dogs for hunting _________ other animals, and the dogs did not _________ when they got until they their masters agreed. So dogs were used for __________ sheep and guarding chickens. But now people in the towns and cities ___________ dogs to fight other animals for them. Why do they keep dogs? Of course, they keep them to ________ thieves, but the most important reason is _________ people feel _______ in the city. For a child, a dog is his ____________ friend when he has no friend to ______. For a young wife, a dog is her _____________ when she does not have her own. For old people, a dog is also a child when their _______ children have grown up and __________. Now people do not have to use a dog, but they keep it _____________ a friend, just like a member of the ________.

3 . Why did the orangutan（猩猩）cross the road? That’s not the start of a joke, but a question being asked by scientists studying these brilliant apes.

Brent Loken, who runs a group called Integrated Conservation, used camera traps to research into orangutans. That group protects ________ animals in Borneo, the largest island in Asia. Camera traps work by taking a quick photo, when something moves in front of them. In Borneo, scientists use the photos to ________ what the rare orangutans do when people aren’t ________?

Scientists have been studying orangutans in the rainforests for decades. And their data had suggested that the animals almost always traveled through the ________. They were ________ seen walking on the forest floor. Yet when Loken looked at the photos from his team’s camera traps, he got surprised that the apes were walking on the ground, ________ using logging roads（运材道路）and paths built by people.

Were these animals simply ________ to walk on the ground because logging had left too many ________? Or did they ________ down logging roads as convenient shortcut? “More ________ is needed,”

People are removing trees for logging, plantations and the building of the cities. The new findings suggest orangutans might be able to learn to ________ with some of these changes in their ________. It doesn’t mean the animals can survive ________ forests. But it does suggest there might be ways to log forests in a way that won’t greatly ________ these apes.

Stephanie Spehar, primatologist at the University of Wisconsin, Oshkosh, agrees. “The new study doesn’t mean they’re fine in areas with no trees,” she says. “Orangutans clearly need the forest to ________.

4 . Environmental protection is everywhere and Christmas is no exception. Going “green” has ___been so festive as in westernmost Canada_____two start-ups are offering an eco-friendly Christmas tree rental service for the holiday period.

For about 100 dollars, Evergrow Christmas Trees and Carbonsync Christmas will drop off a potted tree at your home or business and____three weeks later after all the____have been opened and Santa has parked his sleigh.

Carbonsync plans to donate its trees to habitat restoration groups for replanting, while Evergrow says it will_____them to a nursery to be____until next Christmas when they may be____out again.

Trees normally cost four times less on average, but are usually turned into mulch or sent to garbage dumps after the holidays in most North American cities.

“What (folks) are doing now is that they’re____these hordes of trees everywhere in the Fraser Valley to ship to Vancouver, ” Brad Major of Carbonsync Christmas told public broadcaster CBC.

“These trees grow anywhere from 6 to 12 years to be____one Christmas, and all these trees go to the landfill, and it’s a huge pile of trees, ” he said. “It’s like the biggest____of a resource. ”

The firm’s trees will also continue to____CO2 from the atmosphere, doing their bit to help curb global warming____ending up as waste.

And if a family____, they may even rent the same tree year after year from Evergrow,   ____it has not grown too large to____their living room.

5 . Jaguar （美洲虎）is an endangered animal. It is said that there are less than 20 jaguars in the world currently, one of which is living in the national zoo of Peru. To protect this jaguar, Peruvians _________ a zone in the zoo for it, where there are groups of cattle, sheep and deer for the jaguar to eat. Anyone who has visited the zoo _________ it to be the “Heaven of Tiger”. _______, strange enough, no one has ever seen the jaguar _______the animals. What we could see is it’s lying in its house sleeping and eating the meat _________by the zoo staff.

Some people thought that the jaguar felt too _________, so they collected money and rented a female tiger to accompany it. Nonetheless, it did not make too much sense. “It is _______ for the jaguar to be lazy in this environment. Tiger is the king of forest but you _______ put some small animals around him. That is why the jaguar shows no _______ in going out. Why don’t you put some __________ around him?”a visitor suggested. The zoo __________his advice and put five wolves into the jaguar’s territory(领地). Since then, it either stands on top of the hill roaring __________goes down from the hill running without sleeping all day，totally getting back to its __________.

In our world, one creature __________ any rival(对手) is lifeless. Actually, this principle also ____________to human beings. If a man lives without competitors, he is sure to be satisfied with the present and will __________before all difficulties. Difficult environment tends to __________successful people. Therefore, we need some rivals to push us with strict requirements and standards, leaving us going ahead in all ____________and challenges. Due to our rivals, we can __________the best in us. Due to our rivals, we will continuously __________our capabilities when competing with them!

6 . “Leave a place better than you found it.” It is a _______ philosophy, but one that William Lindesay _______ dear. On April 22, which was also Earth Day, he led twenty _________ to help clean up the Jiankou section of the Great Wall.

“He who _________ is the owner,” William said in the _________ remarks of the cleanup event in 2000. “The Great Wall _________ China, and is also one of the greatest _________ in the world. Everyone has a _________ to protect it. Every day should be Earth Day,” he said.

During the past three decades, he has spent most of his time _________ and exploring the Great Wall and has developed his own __________ to protect the cultural relic.

“It’s a __________ thing that people are going out to enjoy themselves and to __________ the great history and heritage, __________ it’s also quite dangerous if they don’t __________ how fragile (易损坏的) the historical sites are and how fragile the __________ is,” William said.

In 1989, his first __________ Alone on the Great Wall was published, and he has published another five books about the Great Wall since then. In 2001, he __________ International Friends of the Great Wall, a (n) ________ whose efforts are aimed at protecting this __________ to the past.

His next step is to organize exhibitions about the Great Wall as a __________ over the last 400 years. The exhibitions are expected to be held in Beijing, London, Paris and Washington DC.